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Official data from INPI

MÉTODO DE DESLIGNIFICAÇÃO E BRANQUEAMENTO DE MATERIAL CELULÓSICO

DeferidaInvention Patent

Application data

Number

PI8204842

Type

Invention Patent

Filing

08/19/1982

Publication

08/02/1983

Progress at the INPI

  1. Filing08/19/82
  2. Publication08/02/83
  3. Examination08/06/85
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kimberly-Clark Tissue Company

US

Kimberly - Clark Worldwide, Incorporated.

US

Scott Paper Company

US

Inventors

R. S. (pessoa física)

US

S. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

297.385 · 08/28/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Conhecimento de parecer técnico

#7.1

08/16/1988

RPI 930

Solicitação de exame técnico

#4.1

08/06/1985

RPI 772

Publicação do pedido de patente

#3.1

08/02/1983

RPI 667

Pedido de patente depositado

#2.1

10/05/1982

RPI 624

Carta-patente expirada

#21.1

Patente extinta em 19/08/97

07/01/2008

RPI 1956

Transferência deferida

#25.1

Transferido de: Kimberly-Clark Tissue Company

07/04/2000

RPI 1539

Alteração de nome deferida

#25.4

Alterado de: Scott Paper Company

05/16/2000

RPI 1532

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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